الفهرس 
Sharp crested weir
Dimensional AnalysisOnly 14 pages are availabe for public view
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Abstract
Large quantities of water are becoming more needed everyday to fulfill the
continuously increasing requirements of mankind. This, in tum, necessitates
to maximize the discharge obtained from a weir under a given head. The
present work studies various parameters to increase the discharging capacity
of weirs. To acheive this, it is suggested to use circular crested weirs instead
of sharp crested ones. In this study, ten models having different vertex angles
for different flow conditions were carried out in the hydraulic laboratory of
the Faculty of Engineering in Ain Shams University to find the influence of
the vertex angle of the circular crested weir on the discharge coefficient.
Surface water profiles for different vertex angles were measured. Comparing
the discharge coefficient of circular weirs of different vertex angles with a
normal flat crested weir having the same height and D.S. slope, it was found
that the proposed model gives a high discharge coefficient and thus a large
discharge capacity.